584708 divided by 90 
The aim is to understand the frequency of 90 in 584708.

On to step 1:
The number 90 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 90

Step 2:
90 can be fit into 58 0 times, resulting in a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 58, we end up with 58.
Include the next digit (4) from the dividend after 58, then repeat: 584 / 90

Going ahead to step 3:
If we divide 584 by 90, we get 6 and a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 540 from 584 leaves us with 44.
Append the next digit (7) from the dividend to 44 and continue with: 447 / 90

Going ahead to step 4:
When dividing 447 by 90, we get 4 with a remainder of 87.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Deduct 360 from 447 and we're left with 87.
Fetch the next digit (0) from the dividend, attach it to 87 and continue: 870 / 90

Advancing to step 5:
If we divide 870 by 90, we get 9 and a remainder of 60.
Use 9 as the next digit of our solution. 
Result so far: 649.0
If we take 810 away from 870, we end up with 60.
Bring next digit (8) of the dividend behind the 60 and repeat the process: 608 / 90

Step 6:
90 can be fit into 608 6 times, resulting in a remainder of 68.
Record the quotient 6 as the next digit in the result. 
Result so far: 6496.0
Deduct 540 from 608 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 7:
The number 90 fits into 680 7 times, leaving a remainder of 50.
Put 7 as the next digit of the answer. 
Result so far: 6496.7
Deduct 630 from 680 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
90 goes into 500 5 times with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 6496.75
Subtracting 450 from 500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
If we divide 500 by 90, we get 5 and a remainder of 50.
The next digit of our result is 5. 
Result so far: 6496.755
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 6496.755 with a balance of 0.005.